"I have to say at the moment we don't know what is going to happen," Shaw told the Lancashire Evening Post.
"We don't know whether he is going to re-sign or leave in the summer. That is very worrying.
"I spoke to Eddie about 10 days ago and he said he would be pushing Paul Stretford to speak with us again.
"At the moment we are waiting for his people to get back in touch with us, but so far we haven't heard anything.
"These things can drag on. But we would like to get it sorted out as soon as possible and, at the moment, we haven't got it sorted."